100% Diamond grinding surface cuts with superior speed and consistency. Diamonds are bonded by nickel platingor resin bonding. Flexible Diamond Hand Polishing Pad are versatile - excellent for all hard-to-cut materials. Lightweight, easy to handle. Foam-based Hand Laps are comfortable - for flexibility on a variety of surfaces.Diamond Hand Polishing Pads are used to perform convenient, on-site polishing, on materials such as glass, ceramics, marble, granite, concrete, terrazzo and quartz surfaces.Use wet or dry. This system is available in two bond types to provide the best possible finish. metal boned Grits: This type of pad uses nickel plating technology to hold each individual diamond in place and is available in 60, 80,100,200, 400 and 600 grits.